<form nz-form [formGroup]="form" (ngSubmit)="submit()" role="form">
  
      <nz-alert *ngIf="error" [nzType]="'error'" [nzMessage]="error" [nzShowIcon]="true" class="mb-lg"></nz-alert>
      <nz-form-item>
        <nz-form-control>
          <nz-input-group nzSize="large" nzPrefixIcon="anticon anticon-user">
            <input nz-input formControlName="userName" placeholder="输入用户名">
          </nz-input-group>
          <nz-form-explain *ngIf="userName.dirty && userName.errors">
            用户名错误
          </nz-form-explain>
        </nz-form-control>
      </nz-form-item>
      <nz-form-item>
        <nz-form-control>
          <nz-input-group nzSize="large" nzPrefixIcon="anticon anticon-lock">
            <input nz-input type="password" formControlName="password" placeholder="请输入密码">
          </nz-input-group>
          <nz-form-explain *ngIf="password.dirty && password.errors">
           密码不能为空
          </nz-form-explain>
        </nz-form-control>
      </nz-form-item>
   
  <nz-form-item>
    <nz-col [nzSpan]="12">
      <label nz-checkbox formControlName="remember">记住用户名</label>
    </nz-col>
    <nz-col [nzSpan]="12" class="text-right">
      <a class="forgot" (click)="msg.error('请联系信息中心')">忘记密码</a>
    </nz-col>
  </nz-form-item>
  <nz-form-item>
    <button nz-button type="submit" nzType="primary" nzSize="large" [nzLoading]="loading" nzBlock>
      登录
    </button>
  </nz-form-item>
</form>

